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Analysis Report Original title deed.xlsx
Overview
General Information
| Sample Name: | Original title deed.xlsx |
| Analysis ID: | 402636 |
| MD5: | 97ffd7670cb87a5e565a82394ec28d77 |
| SHA1: | 138d3a2105ff5cf1b8d55a9a25b1d8f34b07c121 |
| SHA256: | c54436c4152096f4cc05b88c7c9f76f30dea38d4569ef5303a527bc79f22560b |
| Tags: | NanoCoreRATVelvetSweatshopxlsx |
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Most interesting Screenshot:  |
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Detection
Nanocore
| Score: | 100 |
| Range: | 0 - 100 |
| Whitelisted: | false |
| Confidence: | 100% |
Signatures
Detected Nanocore Rat
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: NanoCore
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Yara detected AntiVM3
Yara detected Nanocore RAT
.NET source code contains potential unpacker
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Drops PE files to the user root directory
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Office equation editor drops PE file
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Allocates a big amount of memory (probably used for heap spraying)
Allocates memory within range which is reserved for system DLLs (kernel32.dll, advapi32.dll, etc)
Antivirus or Machine Learning detection for unpacked file
Contains functionality to call native functions
Contains functionality to open a port and listen for incoming connection (possibly a backdoor)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Document misses a certain OLE stream usually present in this Microsoft Office document type
Downloads executable code via HTTP
Drops PE files
Drops PE files to the user directory
Enables debug privileges
Found inlined nop instructions (likely shell or obfuscated code)
IP address seen in connection with other malware
Installs a raw input device (often for capturing keystrokes)
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Office Equation Editor has been started
Potential document exploit detected (performs DNS queries)
Potential document exploit detected (performs HTTP gets)
Potential document exploit detected (unknown TCP traffic)
Uses a known web browser user agent for HTTP communication
Uses code obfuscation techniques (call, push, ret)
Yara signature match
Classification
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| Found malware configuration |
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| Multi AV Scanner detection for domain / URL |
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| Multi AV Scanner detection for dropped file |
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| Multi AV Scanner detection for submitted file |
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| Yara detected Nanocore RAT |
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| Antivirus or Machine Learning detection for unpacked file |
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| Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) |
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| Office Equation Editor has been started |
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| Allocates a big amount of memory (probably used for heap spraying) |
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| Found inlined nop instructions (likely shell or obfuscated code) |
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5_2_003FAF31 | |
| Potential document exploit detected (performs DNS queries) |
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| Potential document exploit detected (performs HTTP gets) |
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| Potential document exploit detected (unknown TCP traffic) |
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| Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) |
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| C2 URLs / IPs found in malware configuration |
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| Detected TCP or UDP traffic on non-standard ports |
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| Downloads executable code via HTTP |
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